Nikon instruction manual Troubleshooting, Problems with the SB-800, Cause, page

Troubleshooting

If a warning indication appears on the SB-800’s LCD panel or inside the camera’s viewfinder, use the following chart to determine the cause of the problem before you take your Speedlight to a Nikon service center for repair.

■■■ Problems with the SB-800

Problem	Cause	Ref.
		page
The power cannot be turned on.	The batteries are not correctly installed.	p. 18
The ready-light does not light up.	nBattery power is weak.	p. 19
	nThe standby function is activated	p. 21
	and operating.
The power turns off automatically.	The batteries are extremely exhausted.	p. 19
A strange sound can be heard caused
by the flash head zooming back and	The batteries are extremely exhausted.	p. 19
forth even when the SB-800 is
turned off.
The flash shooting distance range	The flash head is adjusted to other than	p. 23
does not appear.	the horizontal/front or down -7˚ position.
No D, or o indicator appears	The camera’s exposure mode or	p. 108
in TTL auto flash mode.	metering system is not correctly set or a
	non-CPU lens is mounted.
The zoom-head position cannot be	The built-in wide-flash adapter is in use or	p. 101
adjusted to other than 14mm or 17mm.	the Nikon Diffusion Dome is attached.	p. 96
The SB-800 does not work when
control buttons (a button, e/f	Control buttons are locked.	p. 12
button, or c/d button) and g button
are pressed.
The SB-800 does not fire.	Canceling flash firing is activated in the	p. 67
	Custom settings mode.

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